Yes and no. The general performance will be the same. You'll get the same fps. BUT when the emulator needs to access the ISO, it will be instantaneous compared to a normal HDD. For example, Brawl sometimes stutters for half a second to load new effects in the middle of a combat.
If you place your Dolphin folder in the SSD, it will help a lot in case you use HD texture packs.

masterotaku Wrote:If you place your Dolphin folder in the SSD, it will help a lot in case you use HD texture packs.

I highly doubt this. Has this been tested/confirmed?

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masterotaku Wrote:If you place your Dolphin folder in the SSD, it will help a lot in case you use HD texture packs.

I highly doubt this. Has this been tested/confirmed?

I don't know (I don't have an SSD). But with Zelda TP and the 3GB texture pack, loading times increased a lot. Example: I loaded my save at Kakariko, then I moved the camera to point at the village and the game became static, waiting for the HDD for 4 or 5 seconds to load textures (the HDD LED was pretty much on all that seconds).

A friend of mine has a SSD and that texture pack. I told him to move Dolphin to his SSD. I'll ask him if that improved something, when I can contact him.